The GS Oxygen Sensor KE series (KE-25 and KE-50) is a unique
galvanic cell type oxygen sensor which was developed in Japan in
1985. Its most notable features are long life expectency, excellent
chemical durability, and it is not influenced by CO 2 . The KE
series oxygen sensor is ideal to meet the ever-increasing demand
for oxygen monitoring in various fields such as combustion gas
monitoring, the biochemical field, medical applications, domestic
combustion appliances, etc.